Loom box motion lever



Dec. 28, 1943. v. H. JNN|NGs v 2,337,896

LooM Box MOTION LEVER Filed May l, 1943 Vla-ron H. JENNme-s by thepositioning screw 52.

The lever arm 28 is provided with a transverse preferably rectangularopening 40 having a flat bottom 4l, side walls 42, and a top 43 throughwhich the shank 32 extendsk into the opening 4U. The lower end of theshank is inclined or beveled as at 45 relatively to the bottom edge 4|of the opening 49 and rests on a similarly beveled edge 46 of a. saddle41 having spaced parallel walls 48 and 49 extending above the inclinedsurface 46 and defining a slot 5U which receives the bottom beveled endof the shank.

A positioning screw 52 is threaded into the lever arm 2B opposite theopening 40 and preferably relatively low in the latter so that itengages that part of the saddle below the slot D. The positioning screw52 can be turned to be extended into or moved out of the opening 4o andits adjusted position can be held by a lock nut 53.

In operation, it may be assumed that'the initial setting of the fingeris desired to be relatively near the stud 25, in which case thepositioning screw 52 will be moved to the left as viewed in Fig. 2 topermit the saddle to occupy a position te the left of the center ofopening 40. The finger shank is then pressed down firmly against thesaddle t0 cause close engagement between the surfaces 45 and 45 whilethe saddle is limited as to left hand movement as seen in Fig. 2 Afterthe parts are thus adjusted the screw 33 is tightened and the gudgeon 3lwill be held in relatively low position to receive the connector I1.

When the top of gudgeon 3l wears due to use, the connector moves towardstud 25y and the angular motion of lever 26 is increased bevond itsproper movement. To compensate for this cbangethe set screw 33 isloosened, the lock nut 53 released, and the positioning screw 52 turnedin a direction to feed it into the openingr 4!! and thereby cause righthand movement of the saddle 41. The effect of this lateral movement ofthe saddle is to cause upward movement of the finger by cooperation ofthe surfaces 45 and 46. When the finger hasbeen raised to the desiredposition lock nut 53 is tightened and screw 33 set to hold the linger inits new adjusted position with gudgeon 3i highenough to cause correctangular movement of lever 2B.

The saddle walls 48 and 49 engage the sides of the lower end nf theshank 32 and hold the saddle in proper vertical position in the slot foropening 4!) and also prevent the saddle from moving laterallykout ofopening 40. The bottom surface 540i the saddle slides along and lies onthe surface il` of the opening 4l), thereby limiting down motion of thesaddle and shank relatively to arm 213, Because of the fact that thevertical position of the finger is determined by the saddle and thepositioning screwl. it is not necessary to tighten the set screw 33 tothe extent heretoforenecessary and the previously experienced pitting ornotching of the narrow left edge of the shank 3S is avoided.

From the foregoing it will be seen that I have provided simple means bywhich the finger can be adjusted readily on the arm 28 with respect tothe lever axis by means of a saddle having an inclined surface to engagea similarly inclined surface on the bottom of the shank 32. It willfurther be seen that the vertical adjustment of the finger is effectedbv movement of screw 52 and maintained by the saddle. Jfor which reasonit is not necessary to set the screw 33 as tightly as heretofore.

Having thus described my invention it will be seen that changes andmodifications may be made therein by those skilled in the art withoutdeparting from the spirit and scope of the invention and I do not wishto be limited to the details herein disclosed, but what I claim is:

l. In a box lever for a loom having an actuator, a lever arm providedwith a transverse surface, a finger mounted for movement along said armtoward and from the lever axis and having on one end a gudgeon for saidactuator, and wedge means between said surface on the arm and the otherend of said linger' which by lateral movement relatively to said arm andnger effects movement of the latter along said arm to move said gudgeonrelatively to the lever axis.

2. In a box lever form a loom having an actuator, a lever arm providedwith a transverse surface, a linger mounted for movement along said armtoward and from the lever axis and having on one end a'gudgeon for saidactuator, wedge means between said surface on the arm and the other endof said finger, and means on the lever to move said wedge means alongsaid surface and cause said wedge means to effect movement of the fingeralong said arm to change the distance between said gudgeon and the leveraxis.

3. In a box lever for a loom having an actuator, an arm provided with anarrow slot extending therethrough toward and from the lever axis andcommunicating with a transverse opening extending through said arm, alinger having a gudgeon on one end for said actuator and having theother end extending through said narrow slot and into said transverseopening, and finger setting means in said transverse opening to effectmovement of said finger in said narrow slot, said setting means havingsurfaces inclined to each other, one of said surfaces engaging said ngerand another of said surfaces engaging said arm.

4. In a box motion lever for a loom having an actuator, an arm formingpart of the lever, a nger mounted on said arm for movement toward andfrom the lever axis and having at one end thereof a gudgeon for saidactuator, a saddle engaging opposite sides of the finger and havingoblique surfaces one engaging a part of the arm and the other engagingsaid finger, and means to move said saddle laterally of said arm andfinger to effect movement of the latter on said arm to change theposition of said gudgeon with respect to the lever axis.

5. In a box lever for a loom having an actuator, an arm provided with alateral opening therethrough having a surface extending transversely ofthe arm, a finger movable along said arm toward and from the lever axisand having a gudgeon for the actuator on one end thereof and having theother end extending into said opening, a saddle in said opening engagingopposite sides of the finger and having oblique surfaces one engagingsaid linger and the other engaging said surface of the opening, andmeans to move the saddle laterally of said nger and arm to effectmovement of the finger relatively to the arm to vary the distancebetween the gudgeon and lever axis.

6. In a box lever for a loom having an actuator, an arm provided with anarrow slot extending toward and from the lever axis, a thin fingerhaving opposite flat surfaces and extending through said narrow slot andhaving on one end a gudgeon for the actuator and movable in said slottoward and from the axis thereof, a saddle actuator and mounted formovement on said arm' toward and from the lever axis, a positionermember slidable transversely on said arm and engaging said nger member,and setting means on the arm to move said positioning membertransversely on said arm, one of said members having a surface inclinedto the direction in which the positioner member is'moved by said settingmeans and engaging the othermember, whereby lateral movement of thepositioner member relatively to the finger member effects .movement ofthe latter relatively to the arm to vary the distance between saidgudgeon and the le ver axis.

8. In a shuttle box lever for a loom having an actuator, an arm member,a nger member mounted on the arm member for movement therealong towardand from the lever axis and having a gudgeon for said actuator, apcsitioner for the nger member movable on the arm member transverselythereof, and setting means to move the positioner laterally of saidfinger member, the arm member and positioner having mutually engagingsurfaces extending transversely of the nger member, and the positionerand nger member having engaging surfaces one of which is oblique to theengaging surfaces of the arm member and positioner, so that movement ofthe positioner by the setting means transversely of the arm elects achange in the distance between the gudgeon and lever axis.

VICTOR H. JENNINGS.

